Four-cylinder gasoline engine of the VAZ-2121 car - course by ICE

Contents

Table of contents

SECTION 1. CALCULATION OF ENGINE WORKING CYCLE (thermal calculation)

1.1. Calculation of working medium characteristics

Fresh charge quantity

Composition and quantity of combustion products

1.2. Calculation of gas exchange processes

Initial data for calculation of gas exchange processes:

1.3. Compressing Process Calculation

1.4. Calculation of combustion process

1.5. Calculation of the expansion process

1.6. Determination of engine indicators

1.7. Mechanical (internal) losses and effective engine performance

1.8. Determination of working volume, cylinder diameter and engine piston stroke

1.9. Building an Indicator Chart

Select Scales

Building a Theoretical Cycle Indicator Chart

Constructs an indicator chart corresponding to a valid cycle

Smoothing the indicator diagram near the TDC at the end of the compression process and at the beginning of the expansion process

Selection of gas distribution phases

SECTION 2. DYNAMIC ENGINE CALCULATION

2.1.The initial data for dynamic calculation of the engine

2.2. Select Scales

2.3. Gas pressure force diagram

Rg, unfolded along the angle of SCR

2.4. Bringing of masses of KSM parts

2.5.Selection of masses of KSM parts

2.6. Diagram of inertia forces of reciprocating moving masses of KSM

2.7. Diagram of total force acting on piston

2.8. Force diagrams: lateral, tangential and force directed along the radius of the crank

2.9. Polar diagram of force Rsh acting on crankshaft crankshaft

2.10. Summary indicator torque diagram

2.11. Engine Balance Analysis

SECTION 3. DESIGN AND EVALUATION OF ENGINE COMPONENTS OPERABILITY

3.1. Piston group

3.1.1. Piston

3.1.2. Piston pin

3.1.3. Piston rings

3.2. Connecting rod group

3.2.1. Connecting rod

3.2.2. Connecting rod bolts

3.3. Crankshaft

3.4. Engine housing

3.5. Gas joint

3.6. Gas distribution mechanism

3.6.1. Determination of main parameters of gas distribution mechanism

3.6.2. Cam Profiling

3.6.3. Defining the Characteristic of the Spring Assembly

3.7. Lubrication system

3.8. Cooling system

LIST OF LITERATURE USED